Cause of Failure??
- Thread starter Ck0461
- Start date
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Cylinder didn’t take any damage. Just had one small line of transfer that cleaned up easily. As for the base gasket I put a thin coat of moto seal on the gasket. Must have had a little extra on that section. Squish was to tight to delete the gasket.
So it was a new gasket? Or reuse of the broken one? Let’s end this dance now.
It was a new gasket. Put a thin layer of moto seal on both sides for insurance. Must have gotten a little heavy in that area.
I put 3 tanks of fuel through it today and all is well. I never touched the carb adjustments since it started in 5 pulls and tached to 12,500. My best guess it that it started pulling air through the fuel line on a nearly empty tank. 90+degrees and a hot saw was all it took.
Might have been some “goop” broke free too.
Thanks to all for being able to pick your brains.
I put 3 tanks of fuel through it today and all is well. I never touched the carb adjustments since it started in 5 pulls and tached to 12,500. My best guess it that it started pulling air through the fuel line on a nearly empty tank. 90+degrees and a hot saw was all it took.
Might have been some “goop” broke free too.
Thanks to all for being able to pick your brains.
On motos I glue the base gasket to the cylinder using Yamabond #4 and lightly grease the case side. That way when you remove the cylinder there's not a bunch of sealant to scrape off the cases where it can drop into the engine. On some engines the base gasket is too narrow at the transfers. On those I glue both sides. Usually that's on multi cylinder engines.
Sorry, I still see a broken gasket. You say not. It’s okay, you are back and going. Not worth going on about it. Congratulations.
What oil and mix ratio you using ?
